I recently moved a MICS. On multiple occassions card 1 which is a Caller ID line card goes dead (shows unequipped in the system). Card is there. I swapped out the card, issue returned, then I rebooted the KSU and that clears it. Could this just be power outages / quick outages? There is no UPS but one in the works. Card 2 and Trunk Module seem to be ok. Never seen cards just 'disappear'.